《Long-Lived Charge-Transfer State from B-N Frustrated Lewis Pairs Enchained in Supramolecular Copolymers》 was published in Journal of the American Chemical Society in 2020. These research results belong to Adelizzi, Beatrice; Chidchob, Pongphak; Tanaka, Naoki; Lamers, Brigitte A. G.; Meskers, Stefan C. J.; Ogi, Soichiro; Palmans, Anja R. A.; Yamaguchi, Shigehiro; Meijer, E. W.. Quality Control of Tris(4-bromophenyl)amine The article mentions the following:
The field of supramol. polymers is rapidly expanding; however, the exploitation of these systems as functional materials is still elusive. To become competitive, supramol. polymers must display microstructural order and the emergence of new properties upon copolymerization To tackle this, a greater understanding of the relationship between monomers’ design and polymer microstructure is required as well as a set of functional monomers that efficiently interact with one another to synergistically generate new properties upon copolymerization Here, we present the first implementation of frustrated Lewis pairs into supramol. copolymers. Two supramol. copolymers based on π-conjugated O-bridged triphenylborane and two different triphenylamines display the formation of B-N pairs within the supramol. chain. The remarkably long lifetime and the circularly polarized nature of the resulting photoluminescence emission highlight the possibility to obtain an intermol. B-N charge transfer. These results are proposed to be the consequences of the enchainment of B-N frustrated Lewis pairs within 1D supramol. aggregates. Although it is challenging to obtain a precise mol. picture of the copolymer microstructure, the formation of random blocklike copolymers could be deduced from a combination of optical spectroscopic techniques and theor. simulation. In the part of experimental materials, we found many familiar compounds, such as Tris(4-bromophenyl)amine(cas: 4316-58-9Quality Control of Tris(4-bromophenyl)amine)
In other references, Tris(4-bromophenyl)amine(cas: 4316-58-9) is often used in the synthesis of porous luminescent covalent–organic polymers (COPs)Quality Control of Tris(4-bromophenyl)amine
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary